This is from an ad in a 1919 Power Farmer. Here customers can send for free Handy
Oiler. This is typical of premium items offered by companies during this period.

National News cover July 1919

This is from an ad in a 1919 Power Farmer. Here customers can send for free auto game.
This is also another typical premium of the period.

News articles.

National Petroleum News July 2, 1919

National Refining Sells at AdvanceOil stocks on the New York exchange closed the week at about the same prices as the
preceding week. Texas Company was the heaviest loser, being off eight points. The total
volume of transactions was much lighter. Securities of the various Sinclair issues
maintained their prices at about the same level as the week before. Curb stocks showed no
changes of importance. On the Cleveland stock exchange National Refining common figured in
a sale of a small number of shares at 360, which is an advance of 170 points for this
issue since the first of the year.

National Petroleum News Dec 31, 1919

Cleveland, Dec 29- The National Refining Company , with headquarters in this
city, has been awarded reparation amounting to approximately $6,000 and has succeeded in
having the Interstate Commerce Commission established a lower rate on petroleum products
in carloads from Coffeyville, Kansas to Healdton, Oklahoma. The findings of the
commissions examiner are based on an action brought by the company against the railroad
administration and the Atchison, Topeka and Kansas Railroad, filed May 12, 1919, in which
it was alleged that the rates maintained by the railroad were unjust and unreasonable and
in violation of commerce regulations and the federal control act.